El cangrejo ermitaño

¿Sabías que los insectos palo se llaman ninfas cuando son jóvenes? Las ninfas cambian la piel cuando crecen. Aprende más datos fascinantes en Los insectos palo, uno de los libros de Insectos Fascinantes. Did you know that stick insects are called nymphs when they are young? Nymphs shed their skin as they grow. Learn more fascinating facts in Stick Insects, a Fascinating Insects book.

As a land that’s constantly in flux, Earth sometimes reveals clues about the plants, animals, and other organisms that lived long ago. Fossils teach us much about what life was like millions of years ago, answering the questions of how Earth changed and maybe even why it changed. This essential Earth science topic is thoroughly explained through manageable text, fact boxes, informational charts and diagrams, and a glossary and index. Readers will become young Earth detectives by the time they’re through with this text!

«¡Por fin ha regresado la fantasía a la literatura!». ANA MARÍA MATUTE. Petra tiene doce años, un padre inventor y una araña parlante y lectora con problemas de insomnio. Pese a todo, su vida se desarrolla sin grandes contratiempos? hasta que el príncipe Rodolfo hace llamar a su padre para encargarle algo: la construcción de un reloj astronómico sin igual, que, una vez terminado, enseguida cobra fama por su belleza. No obstante, Petra pronto se entera de lo que oculta el reloj: un mecanismo capaz de manipular el clima mediante el tiempo. El padre de la niña trata de tranquilizarla, ...

Readers will be amazed to discover that every time they climb onto bicycles and ride like the wind, they are defying gravity! This book explains the physics and history behind bicycles, skateboards, and surfboards. Readers learn what happens from the simplest movement of rolling forward to more complex tricks and stunts of jumping and spinning. Readers will never look at bikes, skateboards or surfboards the same way again.

This complete Spanish translation of the highly acclaimed Isaac Asimov's 21st Century Library of the Universe is ideal for students still developing their English-language skills.